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Metals Nonmetals and Metalloids
 

Metals Nonmetals and Metalloids

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    Metals Nonmetals and Metalloids Metals Nonmetals and Metalloids Presentation Transcript

    • 1. Elements in the same row belong to the same . period 2. Elements in the same column are group members of the same . 3. Elements that have many similar group . properties belong to the same 4. Generally, the atomic mass of elements as increases you move from left to right and from top to bottom on the Periodic Table.
    • Soft Silvery solid metalloid 72 Reacts very slowly with oxygen
    • Review • • • • Periodic table Groups 18 Elements in each group have similar properties • Periods • 7 periods
    • SCIENTIST DIVIDE ALL ELEMENTS INTO THREE SECTIONS
    • METALS SOLID AT ROOM TEMPERATURE  Except mercury HAVE A SILVER-GRAY COLOR  Except gold and copper GOOD CONDUCTORS OF HEAT AND ELECTRICITY HAVE A METALLIC LUSTER MALLEABLE
    • NONMETALS FOUND IN ALL STATES OF MATTER COME IN MANY COLORS POOR CONDUCTORS OF HEAT AND ELECTRICITY (INSULATORS) NO METALLIC LUSTER NOT MALLEABLE SOME HAVE STRONG ODORS
    • METALLOIDS HAVE PROPERTIES OF BOTH METALS AND NONMETALS SOME ARE CALLED SEMICONDUCTORS